package com.example.yubo.zyfypt_403yb.fragment;

import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toast;

import com.example.yubo.zyfypt_403yb.R;
import com.example.yubo.zyfypt_403yb.adapter.TcaseAdapter;
import com.example.yubo.zyfypt_403yb.bean.TcaseBean;
import com.example.yubo.zyfypt_403yb.iface.TcaseListener;
import com.example.yubo.zyfypt_403yb.model.TcaseModel;

import java.util.List;

import static android.content.Context.MODE_PRIVATE;

/**
 * Created by Neusoft on 2017/4/9.
 */

public class Fragment4 extends Fragment {
    private  TextView tvinfo;
    private View view=null;
    private Context context;

    private RecyclerView recyclerView;
    private LinearLayoutManager  layoutManager;//显示布局效果
    //private MyAdapter myAdapter;//适配器
    //private List<ArticleBean> list=null;//数据源
    private TcaseAdapter tcaseAdapter;
    private List<TcaseBean> list=null;
    private SharedPreferences sp;
    private String sessionid;

    private int page=1; // 代表页数，并初始化为1，代表第1页。
    private int lastVisibleItemPosition;//最后一条可见条目的位置
    TcaseListener tcaseListener = new TcaseListener() {
        @Override
        public void onResponse(List<TcaseBean> beanlist) {
            //list= beanList;
            if(page==1)
            {
                list=beanlist;
            }
            else {
                list.removeAll(beanlist);
                list.addAll(beanlist);
            }
            tcaseAdapter.setList(list);
            tcaseAdapter.notifyDataSetChanged();
        }

        @Override
        public void onFail(String msg) {
            Toast.makeText(context, "msg", Toast.LENGTH_SHORT).show();
        }
    };
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        context = getActivity();
        //动态加载Fragment1的布局文件
        view = inflater.inflate(R.layout.fragment4, container, false);
        //获取布局上的控件，注意通过view获取
        tvinfo = (TextView) view.findViewById(R.id.textView8);
        tvinfo.setText("案例");
        //tvinfo.setText("微信");

        //注意Toast第一个参数上下文
        Toast.makeText(context, "加载Fragment案例", Toast.LENGTH_SHORT).show();
        //返回动态生成的view
        //粘
        sp=context.getSharedPreferences("login",MODE_PRIVATE);
        readSP();
        initRecyclerView();


        //调用哪个方法 拿到数据
        //第二页
        //在这使用它 实例化Artivitymodel 调用方法获取网络数据
        TcaseModel tcaseModel = new TcaseModel();
        tcaseModel.getResoutList( "tcase",1,
                sessionid,
                tcaseListener);
//这里
        return view;
    }
    private void readSP() {
        sessionid = sp.getString("sessionid", null);
    }

    //粘贴
    private void initRecyclerView() {
        //获取RecyclerView 设置属性 获取数据源 绑定
        recyclerView= (RecyclerView)view.findViewById(R.id.recyclerview);
        //创建默认的线性布局
        layoutManager=new LinearLayoutManager(context);
        //设置布局管理器
        recyclerView.setLayoutManager(layoutManager);
        recyclerView.setHasFixedSize(true);
        //  list=getData();
        tcaseAdapter=new TcaseAdapter(context);
        tcaseAdapter.setList(list);
        recyclerView.setAdapter( tcaseAdapter);
        //以下为新增内容
        recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
                                             @Override
                                             public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                                                 super.onScrollStateChanged(recyclerView, newState);
                                                 if (newState == RecyclerView.SCROLL_STATE_IDLE && lastVisibleItemPosition + 1 == list.size()) {
                                                     page += 1;
                                                     //再次实例化ArticleModel，调用方法获取网络数据，请求新一页数据
                                                     TcaseModel tcaseModel = new TcaseModel();
                                                     tcaseModel.getResoutList("tcase",page,
                                                            sessionid, tcaseListener);

                                                 }
                                             }
                                             @Override
                                             public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                                                 super.onScrolled(recyclerView, dx, dy);
                                                 lastVisibleItemPosition=layoutManager.findLastVisibleItemPosition();//滚动结束后将赋值为可见条目中最后一条位置
                                             }
    });
    }
}